Deflection control type ink jet printing apparatus

Details Deflection control type ink jet printing apparatus Deflection control type ink jet printing apparatus

1982-05-14

1984-03-06

Griffin, Donald A.

Recorders

Record receiver deforming

G01D 1518

Patent

active

044357206

ABSTRACT:
A deflection control type ink jet printing apparatus includes a pair of parallel electrodes located downstream of a deflection electrode with respect to an intended direction of ink ejection from an ink ejection head. The electrodes sense a deviation or offset of an actual path of deflection which ink droplets deflected to predetermined one of a plurality of steps follow from a reference path of deflection, which is defined intermediate between the two electrodes. An ink is fed to the head under a pressure which is variable in accordance with the sensed deviation in deflection in order to compensate for the deviation. The two electrodes may be replaced by at least one electrode on which ink droplets deflected to a specific deflection step are to impinge.

REFERENCES:
patent: 3911445 (1975-10-01), Foster
patent: 4328504 (1982-05-01), Weber et al.
patent: 4346393 (1982-08-01), Wallace et al.

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